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目的 从病理角度认识支气管血管切迹征 ,探讨多平面重建 (MPR)对该征检出的作用。方法 ①观察病理证实的周围型小肺癌 91例 ,良性结节 5 5例。以及 9例周围型小肺癌 ,2例良性结节术后改良Heitzman法充气固定肺叶制成病理大切片 ,对良恶性支气管血管连接进行对比分析。②对恶性支气管血管连接 2 0例 ,良性 13例行MPR ,考察MPR显示切迹征的作用。结果 ①支气管血管切迹征对恶性者特异性为 95 .2 %。②恶性支气管血管连接在MPR的切迹征检出率为 70 % ,与横断扫描之间有显著差异。结论 切迹征对于恶性支气管血管连接有高特异性诊断价值。MPR配合多层螺旋CT能提高此征检出率
Objective To understand the sign of bronchovascular incision from pathological point of view and to explore the effect of multiplanar reconstruction (MPR) on this sign. Methods ① Pathological confirmed 91 cases of peripheral small lung cancer, benign nodules 55 cases. And 9 cases of peripheral small lung cancer, and 2 cases of benign nodules were treated with modified Heitzman method to inflate fixed lobes to make large pathological sections. The benign and malignant bronchial vascular connections were compared. ② Malignant bronchial vessels in 20 cases, benign 13 cases of MPR, investigate the role of MPR showed signs of incision. Results ① The specificity of bronchovascular incision in malignancy was 95.2%. ② Malignant bronchial blood vessels in the MPR incision sign detection rate of 70%, there are significant differences between the transection scan. Conclusion The sign of incision has high specificity for the diagnosis of malignant bronchial vascular connections. MPR with multi-slice spiral CT can improve the detection rate